作　　者： ; ; ; ; ; ;

机构地区： 武汉理工大学能源与动力工程学院

出　　处： 《润滑与密封》 2007年第6期12-14,36,共4页

摘　　要： 由于船舶螺旋桨的较大重力的作用,螺旋桨轴和尾轴承易发生变形,改变了尾轴承与螺旋桨轴颈之间的间隙分布,在尾轴承中心线与螺旋桨轴颈中心线之间形成一个变形角。对轴承油膜承载能力与轴承变形角之间的变化关系进行了数值计算,计算结果表明:随着变形角的增大,轴承的油膜承载能力会增大,继续增大变形角,轴与轴承发生部分刚性接触,承载能力迅速增大。同时通过在船舶轴系模拟试验台上测试了轴承油膜压力与变形之间的变化曲线,验证了计算结果的正确性。 The propeller is hung on the stern end of the propulsive shafting. It is located outside the ship body. The propeller shaft and stern journal bearing are easy to deform under the weight of the big propeller of ship, and the gap between the bearing and neck of propeller shaft is changed. A deformation angle between the bearing and neck of propeller shaft is formed. The influence of the deformation angle on the loading capacity of bearing was calculated in numerical method. The result shows that with the deformation angle increasing, the loading capacity of the bearing increases. When the angle increases more and reaches the limit value, the direct contact between the bearing and the propeller shaft neck happens, and the loading capacity increases quickly. The conclusion was verified by the testing curve of relationship between the lubrication oil film pressure and the deformation on the marine shafting simulative tester.

关 键 词： 船舶推进轴系 轴承变形 轴承承载能力 数值分析

领　　域： [机械工程]